that's part of what we were saying was the militarization of law enforcement. that kit looks like a member of infantry in iraq or afghanistan. this is what has happened since 9/11 as homeland security, lester holt was blunt about saying 9/11 funding. all these cities and towns now have these tricked out armored vehicles and the degree to which s.w.a.t. teams have changed and been upgraded has been dramatic and remarkable and we're seeing it in the streets. we're joined on the telephone by a doctor who has many, many fewer than six degrees of separation to this story. doctor, as i understand it, you live in watertown and the story starts when you heard gunfire last night. had you been aware of the situation at the m.i.t. campus prior to that? >> yeah, that's correct. i actually was watching the news while doing some work at home. saw a little later on saw police cars floodininto watertown along the charles river. and shortly after that, i heard gunfire and some explosions. when i heard the explosions, i knew that this was something very significant and called th